<template>
    <div>
  <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/login' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>权限管理</el-breadcrumb-item>
  <el-breadcrumb-item>角色列表</el-breadcrumb-item>
</el-breadcrumb>
<el-card>
    <el-row>
        <el-col>
            <el-button type="primary">添加角色</el-button>
        </el-col>
    </el-row>
     <el-table :data="rolesList" border stripe>
         <el-table-column type="expand">
             <template v-slot='scope'>
                 <el-row :class="['bdbottom',i1 === 0 ? 'bdtop':'','vcenter']" v-for="(item1,i1) in scope.row.children" :key="item1.id">
                     <el-col :span="5">
                    <el-tag closable @close="removeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
                    <i class="el-icon-caret-right"></i>
                     </el-col>
                     <el-col :span="19">
                         <el-row :class="[i2 === 0 ? '': 'bdtop', 'vcenter']" v-for="(item2,i2) in item1.children" :key="item2.id">
                             <el-col :span="6">
                                 <el-tag type="success" closable @close="removeRightById(scope.row,item2.id)">
                                     {{item2.authName}}
                                 </el-tag>
                                 <i class="el-icon-caret-right"></i>
                             </el-col>
                             <el-col :span="18">
                                 <el-tag type="warning" v-for="(item3,i3) in item2.children" :key="item3.id" closable @close="removeRightById(scope.row,item3.id)">
                                     {{item3.authName}}
                                 </el-tag>
                             </el-col>
                         </el-row>
                     </el-col>
                 </el-row>
             </template>
         </el-table-column>
     <el-table-column type="index"></el-table-column>
     <el-table-column label="角色名称" prop="roleName"></el-table-column>
     <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
     <el-table-column label="操作" width="300px">
        <template v-slot="scope">
      <el-button type="primary" icon="el-icon-edit" size="mini" >编辑</el-button>
      <el-button type="danger" icon="el-icon-delete" size="mini">删除</el-button>
      <el-button type="warning" icon="el-icon-setting" size="mini" @click="showright(scope.row)">分配权限</el-button>  
        </template>
    </el-table-column>
</el-table>
</el-card>
<el-dialog
  title="分配权限" :data='rightslist'
  :visible.sync="fenpei"
  width="50%" @close="setRight">
  <el-tree :data="rightslist" :props="treeProps" show-checkbox node-key="id" default-expand-all :default-checked-keys="defkeys" ref="treeRef"></el-tree>
  <span slot="footer" class="dialog-footer">
    <el-button @click="fenpei = false">取 消</el-button>
    <el-button type="primary" @click="allotRight">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>
<script>
export default {
  data(){
      return{
          rolesList:[],
          fenpei:false,
          rightslist:[],
          treeProps:{
              label:'authName',
              children:'children'
          },
          defkeys:[],
          roleId:''
      }
  } ,
  created(){
      this.getRolesList()
  } ,
  methods:{
      async getRolesList(){
         const {data:res} = await this.$http.get('roles')
         if (res.meta.status !==200){
             return this.$mes.error('获取角色列表失败！')
         }
         this.rolesList=res.data
         console.log(this.rolesList)
      },
      async removeRightById(role,rightId){
            const remove = await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'}).catch(err =>err)
          if(remove !=='confirm'){
            return this.$mes.info('已取消删除')
          }
          const{data:res}=await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
          if(res.meta.status !==200){
            return this.$mes.error('删除权限失败！')
          }
          role.children = res.data
      },
      async showright(role){
         this.roleId=role.id
         const{data:res} =await this.$http.get('rights/tree')
         if (res.meta.status !==200){
             return this.$mes.error('获取权限数据失败！')
         }
         this.rightslist=res.data
         console.log(this.rightslist)
         this.getLeafKeys(role,this.defkeys)
          this.fenpei = true
      },
      getLeafKeys(node,arr){
          if(!node.children){
          return arr.push(node.id)
          }
          node.children.forEach(item => this.getLeafKeys(item,arr))
      },
      setRight(){
      this.defkeys=[]
      },
      async allotRight(){
          const keys=[...this.$refs.treeRef.getCheckedKeys(),
          ...this.$refs.treeRef.getHalfCheckedKeys()
          ]
          const idStr =keys.join(',')
          const {data:res} = await this.$http.post(`roles/${this.roleId}/rights`,{rids:idStr})
          if(res.meta.status !==200){
              return this.$mes.error('分配权限失败！')
          }
          this.$mes.success('分配权限成功！')
          this.getRolesList()
          this.fenpei = false
      }
  }
}
</script>
<style lang="less" scoped>
.el-breadcrumb{
    font-size: 15px;
    line-height: 50px;
}
.el-button{
    margin-bottom: 15px;
}
.el-tag{
    margin: 8px;
}
.bdtop{
    border-top: 1px solid #eee;
}
.bdbottom{
    border-bottom: 1px solid #eee;
}
.vcenter{
    display: flex;
    align-items: center;
}
</style>